spectroscopy
Flicker… A Bright New Method of Measuring Stellar Surface Gravity
A simple, yet elegant method of measuring the surface gravity of a star has just been discovered. These computations are…
Hubble Observes Planet-“Polluted” Dead Stars In Hyades
For those of us who practice amateur astronomy, we're very familiar with the 150 light-year distant Hyades star cluster -…
The Moon’s Water Comes From the Sun
An image of water-filled debris ejected from Cabeus crater about 20 seconds after the 2009 LCROSS impact. Courtesy of Science/AAAS.…
JPL Wants To FINESSE Info From Exoplanets
Jet Propulsion Laboratory's proposed FINESSE space telescope may not hunt for exoplanets, but it will find out what they're made…
Hubble Captures Giant Lensed Galaxy Arc
[/caption] Less than a year ago, the Hubble Space Telescope's Wide Field Camera 3 captured an amazing image - a…
Supernova Primo – Out To Far Frontiers
[/caption] Its nickname is SN Primo and it's the farthest Type Ia supernova to have its distance spectroscopically confirmed. When…
Did GD61 Eat a Planetessimal?
[/caption] The primary method by which astronomers hope to study exoplanet atmospheres is by detecting their absorption spectra as they…
The Atmosphere of WASP-17b
One of the greatest potentials of transiting exoplanets is the ability to monitor the spectra and examine the composition of…
Absorption Spectroscopy
[/caption] In terms of physics, absorption is defined as the way that energy from photons is taken up by matter,…
Atomic Spectra
The light which atoms give off is made up of specific wavelengths, called lines; observed by a spectroscope, the lines…